Lifting hook

ABSTRACT

A lifting hook is provided with a hook finger engageable with a corner clip strapped to a pulp bale. Below the lifting finger the hook has a clamping foot comprising an enlarged substantially flat surface for pressing against the side of a pulp bale. A lifting ear is provided on the hook above the hook finger and extends inwardly overlying the pulp bale so that a lifting force applied to the ear will cause the clamping foot to pivot about the corner clip inwardly against the bale. A handle is secured to the hook for positioning the hook finger within the corner clip. A plurality of such lifting hooks are used simultaneously in a lifting apparatus with the clamping feet engaging opposed pulp bales.

United States Patent [72] Inventor James A. Pasic Aberdeen, Wash. [2]]Appl. No. 37,196 [22] Filed May 14, 1970 [45] Patented Oct. 19, 1971[73] Assignee Ovalstrapping, Inc.

Hoquiam, Wash.

[54] LIFTING HOOK 8 Claims, 4 Drawing Figs.

[52] US. Cl 294/78 R, 294/67 DA, 294/83 R [51] Int. Cl B66c 1/34 [50]Field of Search 294/31.2, 63, 67, 74, 78, 86, 81

[56] References Cited UNITED STATES PATENTS 1,686,074 10/1928 Currie294/82 3,203,726 8/1965 Smith 3,413,027 11/1968 Bohlinetal PrimaryExaminer-Even C. Blunk Assistant Examiner-lohnny D. Cherry Alt0rneySeed,Berry & Dowrey ABSTRACT: A lifting hook is provided with a hook fingerengageable with a comer clip strapped to a pulp bale. Below the liftingfinger the hook has a clamping foot comprising an enlarged substantiallyflat surface for pressing against the side of a pulp bale. A lifting earis provided on the hook above the hook finger and extends inwardlyoverlying the pulp bale so that a lifting force applied to the ear willcause the clamping foot to pivot about the corner clip inwardly againstthe bale. A handle is secured to the hook for positioning the hookfinger within the corner clip. A plurality of such lifting hooks areused simultaneously in a lifting apparatus with the clamping feetengaging opposed pulp bales.

PAIENTED'nm 19 I97! INVENTOR. JAMES A. PASIC BY Q ATTORNEYS LIFTING HOOKBACKGROUND OF THE INVENTION Field of the Invention This inventionpertains to lifting or hoisting apparatus, and more particularly, toapparatus employing lifting hooks that are usable with corner clipsstrapped on loads, such as pulp bales or the like.

SUMMARY OF THE INVENTION It is an object of this invention to provide anapparatus for lifting multiple sets of strapped loads.

It is another object of the invention to provide a lifting hook having aclamping foot which is moved tightly into engagement with the side ofthe load as a lifting force is applied on the hook.

Basically the apparatus for lifting multiple sets of strapped loadsincludes comer clips held beneath the straps joining each set of loads.The comer clips are engaged by lifting hooks each of which has a hookfinger for engaging the clip, a clamping foot which presses against theside of the bales below the comer slips and a lifting ear which extendsinwardly overlying the load. The lifting ears are supported by cableswhich are fastened to a lifting frame. In this manner the lifting hooksare always engaged at the corner of the load and are swung uprightclamping the clamping foot against the side of the load thus stabilizingthe hook and preventing it from swinging outwardly to interfere withadjacent loads.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an isometric viewillustrating apparatus embodying the principles of the invention forlifting loads, such as pulp bales.

FIG. 2 is a side elevation of a lifting hook embodying the principles ofthe invention.

FIG. 3 is an end elevation of the lifting hook shown in FIGS. 1 and 2.

FIG. 4 is an isometric of a portion of the apparatus shown in FIG. 1illustrating a corner clip engaged by the lifting hook as shown in FIG.1.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The lifting hook, of thepresent invention is used with a comer clip 12 shown in phantom lines inFIGS. 2 and 3, which is strapped onto the load by wires or strap 14. Thecomer clip is fully disclosed in Pasic copending application Ser. No.836,281, filed June 25, I969. The comer clip has a horizontal leg 15 anda vertical leg 16, which position the clip on the comer of a load, and ahook-engaging opening 18.

The lifting hook is provided with a body 22 to which is joined a hookfinger 20. The corner clip is engaged by inserting the lifting fingerthrough the hook-receiving opening 18. The hook finger 20 is providedwith a substantially flat, horizontal clip engaging surface 24 and anupright outer end 26 which prevents the finger from inadvertentlybecoming disengaged from the corner clip.

Secured to the body 22 below the hook finger 20 is an enlarged,substantially flat clamping foot 28 which engages the side of the loadL. Secured to the body above the hook finger 20 is an inwardly extendinglifting ear 30 which overlies the load L when the hook finger is engagedin the corner clip. The lifting ear is provided with an opening 32 thatis connected by a cable 33 to a lifting frame 34. A handle 36 is securedto the upper end of the body 22 for positioning the lifting hook.

By positioning the lifting ear 32 over the load the clamping foot ispivoted about the comer clip against the load. In this manner the footholds the lifting hook stable once the finger is engaged. Since thethickness of the hook protruding laterally from the load is very smallthe loads may be stacked next to one another with little difficulty. InFIG. 1 four sets of loads are illustrated supported from one liftingframe. More or less may of course be carried depending upon the lengthof the frame.

While the preferred form of my invention has been illustrated anddescribed it should be understood that variations in the details thereofwill be apparent to one skilled in the art. Accordingly, it is myintention that the scope of the invention be limited only by a properinterpretation of the claims appended hereto.

The embodiments of the invention in which a particular property orprivilege is claimed are defined as follows:

1. A lifting hook for use in lifting strapped loads such as pulp balesor the like, comprising a hook body, a lifting finger secured to thebody, said lifting finger having an upper supporting surface forsupporting the load by the strap, a clamping foot secured to the bodybelow said lifting finger and engageable with the load, and a liftingear extending inwardly from the body overlying the load and having meansthereon for engagement by lifting means for providing an upward force onsaid lifting ear whereby imposition of the upward force results in thelifting hook pivoting about said lifting finger and forcing saidclamping foot against the load.

2. The lifting hook of claim 1 wherein comer clips having fingerreceiving openings are strapped to the upper corners of the load andwherein said finger is inserted in a corner clip finger receivingopening.

3. The lifting hook of claim 2 wherein said 6 clamping foot includes asubstantially large flat face engageable with the load.

4. The lifting hook of claim 2 in combination with a plurality ofadditional such lifting hooks, said lifting means including a pluralityof cables each secured to the lifting ear of a lifting hook, and alifting frame secured to the cables wherein a plu rality of loads can besimultaneously lifted with the clamping feet engaging opposed loads.

5. A lifting hook for use in lifting strapped loads such as pulp balesor the like, comprising a hook body, a lifting finger secured to thebody said lifting finger including a horizontal clip engaging surfaceand an upright terminal end for holding the clip engaging surface on thecomer clip, a clamping foot secured to the body below said liftingfinger and engageable with the load, and a lifting ear extendinginwardly from the body overlying the load and being engageable bylifting means for providing an upward force on said lifting ear wherebyimposition of the upward force results in the lifting hook pivotingabout said lifting finger and forcing said clamping foot against theload, further including corner clips strapped to the load and whereinsaid finger is inserted in a comer clip, and wherein said clamping footincludes a substantially large flat face engageable with the load.

6. The lifting hook of claim 5 further including a positioning handlesecured to the upper end of the hook body.

7. Apparatus for lifting multiple strapped loads such as pulp bales orthe like comprising at least two sets of opposed strapped loads, comerclips secured by the straps to the outer comers of each set of opposedstrapped loads, lifting hooks each having a hook finger engaged in acorner clip, a clamping foot engaging the side of the load below thelifting finger, and an inwardly extending lifting ear overlying theload, cables secured to said lifting ears and to a lifting frame, thecables associated with one set of loads being spaced from the cablesassociated with the other set of loads, and means for lifiing thelifting frame.

8. A lifting hook for use in lifting loads such as pulp bales or thelike, comprising a hook body, a lifting finger secured to the body, aclamping foot secured to the body below said lifting finger andengageable with the load, and a lifting ear extending inwardly from thebody overlying the load and being engageable by lifting means forproviding an upward force on said lifting ear whereby imposition of theupward force results in the lifting hook pivoting about said liftingfinger and forcing said clamping foot against the load, and wherein thelifting finger and clamping foot are in the same plane and are parallelto the side of the load, and the lifting ear is at a generally rightangle to said plane.

1. A lifting hook for use in lifting strapped loads such as pulp balesor the like, comprising a hook body, a lifting finger secured to thebody, said lifting finger having an upper supporting surface forsupporting the load by the strap, a clamping foot secured to the bodybelow said lifting finger and engageable with the load, and a liftingear extending inwardly from the body overlying the load and having meansthereon for engagement by lifting means for providing an upward force onsaid lifting ear whereby imposition of the upward force results in thelifting hook pivoting about said lifting finger and forcing saidclamping foot against the load.
 2. The lifting hook of claim 1 whereincorner clips having finger receiving openings are strapped to the uppercorners of the load and wherein said finger is inserted in a corner clipfinger receiving opening.
 3. The lifting hook of claim 2 wherein said 6clamping foot includes a substantially large flat face engageable withthe load.
 4. The lifting hook of claim 2 in combination with a pluralityof additional such lifting hooks, said lifting means including aplurality of cables each secured to the lifting ear of a lifting hook,and a lifting frame secured to the cables wherein a plurality of loadscan be simultaneously lifted with the clamping feet engaging opposedloads.
 5. A lifting hook for use in lifting strapped loads such as pulpbales or the like, comprising a hook body, a lifting finger secured tothe body said lifting finger including a horizontal clip engagingsurface and an upright terminal end for holding the clip engagingsurface on the corner clip, a clamping foot secured to the body belowsaid lifting finger and engageable with the load, and a lifting earextending inwardly from the body overlying the load and being engageableby lifting means for providing an upward force on said lifting earwhereby imposition of the upward force results in the lifting hookpivoting about said lifting finger and forcing said clamping footagainst the load, further including corner clips strapped to the loadand wherein said finger is inserted in a corner clip, and wherein saidclamping foot includes a substantially large flat face engageable withthe load.
 6. The lifting hook of claim 5 further including a positioninghandle secured to the upper end of the hook body.
 7. Apparatus forlifting multiple strapped loads such as pulp bales or the likecomprising at least two sets of opposed strapped loads, corner clipssecured by the straps to the outer corners of each set of opposedstrapped loads, lifting hooks each having a hook finger engaged in acorner clip, a clamping foot engaGing the side of the load below thelifting finger, and an inwardly extending lifting ear overlying theload, cables secured to said lifting ears and to a lifting frame, thecables associated with one set of loads being spaced from the cablesassociated with the other set of loads, and means for lifting thelifting frame.
 8. A lifting hook for use in lifting loads such as pulpbales or the like, comprising a hook body, a lifting finger secured tothe body, a clamping foot secured to the body below said lifting fingerand engageable with the load, and a lifting ear extending inwardly fromthe body overlying the load and being engageable by lifting means forproviding an upward force on said lifting ear whereby imposition of theupward force results in the lifting hook pivoting about said liftingfinger and forcing said clamping foot against the load, and wherein thelifting finger and clamping foot are in the same plane and are parallelto the side of the load, and the lifting ear is at a generally rightangle to said plane.